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-rw-r--r--Userland/Libraries/LibWeb/DOM/Text.cpp48
-rw-r--r--Userland/Libraries/LibWeb/DOM/Text.h2
-rw-r--r--Userland/Libraries/LibWeb/DOM/Text.idl3
3 files changed, 53 insertions, 0 deletions
diff --git a/Userland/Libraries/LibWeb/DOM/Text.cpp b/Userland/Libraries/LibWeb/DOM/Text.cpp
index 27d8783984..ca96370727 100644
--- a/Userland/Libraries/LibWeb/DOM/Text.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Text.cpp
@@ -27,4 +27,52 @@ void Text::set_owner_input_element(Badge<HTML::HTMLInputElement>, HTML::HTMLInpu
m_owner_input_element = input_element;
}
+// https://dom.spec.whatwg.org/#dom-text-splittext
+// https://dom.spec.whatwg.org/#concept-text-split
+ExceptionOr<NonnullRefPtr<Text>> Text::split_text(size_t offset)
+{
+ // 1. Let length be node’s length.
+ auto length = this->length();
+
+ // 2. If offset is greater than length, then throw an "IndexSizeError" DOMException.
+ if (offset > length)
+ return DOM::IndexSizeError::create("Split offset is greater than length");
+
+ // 3. Let count be length minus offset.
+ auto count = length - offset;
+
+ // 4. Let new data be the result of substringing data with node node, offset offset, and count count.
+ auto new_data_or_error = substring_data(offset, count);
+ if (new_data_or_error.is_exception())
+ return new_data_or_error.exception();
+ auto new_data = new_data_or_error.release_value();
+
+ // 5. Let new node be a new Text node, with the same node document as node. Set new node’s data to new data.
+ auto new_node = adopt_ref(*new Text(document(), new_data));
+
+ // 6. Let parent be node’s parent.
+ RefPtr<Node> parent = this->parent();
+
+ // 7. If parent is not null, then:
+ if (parent) {
+ // 1. Insert new node into parent before node’s next sibling.
+ parent->insert_before(new_node, next_sibling());
+
+ // FIXME: 2. For each live range whose start node is node and start offset is greater than offset, set its start node to new node and decrease its start offset by offset.
+
+ // FIXME: 3. For each live range whose end node is node and end offset is greater than offset, set its end node to new node and decrease its end offset by offset.
+
+ // FIXME: 4. For each live range whose start node is parent and start offset is equal to the index of node plus 1, increase its start offset by 1.
+
+ // FIXME: 5. For each live range whose end node is parent and end offset is equal to the index of node plus 1, increase its end offset by 1.
+ }
+
+ // 8. Replace data with node node, offset offset, count count, and data the empty string.
+ if (auto result = replace_data(offset, count, ""); result.is_exception())
+ return result.exception();
+
+ // 9. Return new node.
+ return new_node;
+}
+
}
diff --git a/Userland/Libraries/LibWeb/DOM/Text.h b/Userland/Libraries/LibWeb/DOM/Text.h
index 3bf0646315..8c7e9f38a9 100644
--- a/Userland/Libraries/LibWeb/DOM/Text.h
+++ b/Userland/Libraries/LibWeb/DOM/Text.h
@@ -30,6 +30,8 @@ public:
void set_owner_input_element(Badge<HTML::HTMLInputElement>, HTML::HTMLInputElement&);
HTML::HTMLInputElement* owner_input_element() { return m_owner_input_element; }
+ ExceptionOr<NonnullRefPtr<Text>> split_text(size_t offset);
+
private:
WeakPtr<HTML::HTMLInputElement> m_owner_input_element;
diff --git a/Userland/Libraries/LibWeb/DOM/Text.idl b/Userland/Libraries/LibWeb/DOM/Text.idl
index f6556bf1fc..635fd7a29d 100644
--- a/Userland/Libraries/LibWeb/DOM/Text.idl
+++ b/Userland/Libraries/LibWeb/DOM/Text.idl
@@ -2,4 +2,7 @@
interface Text : CharacterData {
constructor(optional DOMString data = "");
+
+ [NewObject] Text splitText(unsigned long offset);
+
};